17×5=57;
2.03÷0.01=203(个)
即5个17是 57,2.03有203个0.01.
故答案为:57,203.
A.The machine isn’t working.
B.They can’t decide on a video.
C.Susan’s mother is going to use it.
D.Susan has to finish her assignment.
以下关于骨骼肌的说法错误的是( )
A.骨骼肌是一种器官
B.骨骼肌收缩受神经系统的支配
C.骨骼肌收缩需要消耗能量
D.一块骨骼肌能独立完成一个动作